Add 81/3 and 63/40
1st number: 27 0/3, 2nd number: 1 23/40
81/3 + 63/40 is 1143/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
81/3 = 81 × 40/3 × 40 = 3240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Add the two like fractions:
3240/120 + 189/120 = 3240 + 189/120 = 3429/120 - 3429/120 simplified gives 1143/40
- So, 81/3 + 63/40 = 1143/40
In mixed form: 2823/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6+63/40 81/3+63/80 81/9+63/40 81/15+63/40 81/21+63/40